There is a better feeling of accomplishment shooting successfully with iron sights than using a scope for some shooters.. I'm one of those.
My shooting Instructor was Sgt. Doyle Gracy USMC, he insisted that a Score Book be kept {Dope Book for every practice. These books were orange in color an had a provision to plot each round fired, Calling the shot" it was called.. Followed by plotting the called shot in the Dope book. In a short while the impact was on call a high percentage of the time, unbelievable in some of the better Shooters..
Sgt. Gracy claimed there are two things that make a good shooter ,of course the are others. One: learn to call your shots after the let off "Break", and make certain the slack in the trigger is taken up during the final sight alignment, not after alignment, or too early, just a second or two before.. He said, the take-up in more important than the Call. but the two must work together..
Do dry 10 min. dry fire drills in each position in concert with the above. In Off hand and slow prone, look at some distant object, best is something green, like a tree . Miss sgt. Gracy everyday... Art